Early on in my career I spent six weeks in an ad agency creative department. I was a junior account executive, and I’d been sent downstairs to the creative floor to learn about what they did. It would be generous to say that I didn’t set the world on fire as a creative. In fact, in my entire time there, I came up with precisely one decent ad idea. So, you can imagine how gutted I was when the creative team I was working with shot it down in flames. Sure, my idea wasn’t going to win a Cannes Lion, but it fit the client’s brief perfectly and deserved to be put forward.…